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METHOD AND SYSTEM FOR SUPPORTING CROSS CLUSTER EXTENSION MOBILITY IN INTERNET-PROTOCOL TELEPHONY

  • US 20080186963A1
  • Filed: 02/16/2007
  • Published: 08/07/2008
  • Est. Priority Date: 02/01/2007
  • Status: Active Grant
First Claim
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1. A method to support cross cluster extension mobility (CCEM) in a communication network, which includes a plurality of clusters, each of the plurality of clusters including a call manager, the method comprising:

  • receiving a request for cross cluster extension mobility from a user on a first telephony device located in a first cluster;

    adding a second telephony device in a home cluster for the user, only if the first cluster is different from the home cluster;

    performing extension mobility login for the user on the first telephony device; and

    configuring a Trivial File Transfer Protocol (TFTP) service parameter of the call manager in the first cluster.

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